DATA:

Group 1 Group 2

2563 2505

2810 2673

2643 2498

2690 2576

2702 2640

2594 2473

2602 2538

2809 2586

2769 2432

2513 2674

Question:

A hospital wishes to justify the benefits of nutrition programs for pregnant women using birth weight data from newborns. The hospital hopes to show that the mean birth weight for newborns from mothers who complete the program is higher than the birth weight for newborns from mothers who do not complete the program. A group of 20 pregnant women were randomly divided into two groups; the first group received the nutrition program and the second group did not receive the program. The resulting weights (in grams) of the newborn babies from each group are shown below. Assume normality.

a) Assuming equal variance, let μ₁ represent the mean associated with the nutrition program, and let μ₂ represent the mean associated with no nutrition program. What are the proper hypotheses?

b) What is the test statistic? Give your answer to four decimal places.  

c) What is the P-value associated with the test statistic? Give your answer to four decimal places.  

d) What is the appropriate conclusion for the hospital using a 0.05 level of significance?

-Conclude that the mean birth weight with the program is higher than the mean birth weight without the program because the P-value is less than 0.05.

-Fail to reject the claim that the mean birth weight with the program is equal to the mean birth weight without the program because the P-value is greater than 0.05.     

- Reject the claim that the mean birth weight with the program is higher than the mean birth weight without the program because the P-value is less than 0.05.

- Fail to reject the claim that the mean birth weight with the program is equal to the mean birth weight without the program because the P-value is less than 0.05.

Solve the following set of linear equations u sing Jacob's method
5x+2y+z = 12
x+4y + 2z = 15
x+ 2y + 5z = 20
Initial values x(0) = y0) = z0) = o

1. Consider a project that requires the completion of 7 tasks, as follows:

   o Tasks A and B can begin simultaneously at the beginning (“time zero”).

   o Task C can only begin after task B is completed.

   o Task D can only begin after task A is completed.

   o Task E can only begin after task A is completed.

   o Task F can only begin after task E is completed.

   o Task G can only begin after tasks C and D are completed.

   The expected durations (in days) of each task are as follows: A=15; B=20; C=10; D=10; E=30; F=20; G=40.

   What is the expected completion of the whole project?

   		50 days
   		60 days
   		70 days
   		75 days

2.Consider the project from the previous question with the added complexity that the actual completion time of each task will be:

Using PERT, what is the expected completion time of the project?

how to calculate diffusivity of napthalene solid ball.?

This is the thesis statement an essay: The genuine effects of inadequate sleep incorporate memory problems, depression, and overall health problems.

Write 3 essay type paragraphs, 1st talking about a memory problem, 2nd depression, and 3rd overall health problem. It should be like an essay paragraph each paragraph including around 120-140 words.

6. Describe an advantage for the president as budget initiator and priority setter.

Alex, Ben, and Chris are trying to move a heavy rock of mass 230 kg. Alex pulls the rock North with a force of 360 N, Ben pushes the rock East with a force of 510 N and Chris pulls the rock with a force of 520 N at an angle 20.0 degrees East of North. They end up moving the rock 2.8 meters 50.97 degrees North of East. In the following answer boxes, enter the work done by Alex, Ben and Chris respectively.
510.00

When the total pressure is 760 mm Hg, various liquid and vapor phases for water (1) - methyl alcohol (2) mixture
The compositions at temperatures are determined experimentally as follows. The total composition is z2 = 0.6 and
temperature 76
Find our 75 mol mix, oC, phase analysis and component analysis. Of this mixture
Find the temperature at which it begins to boil and completely evaporate.

1. The equilibrium constant, K_c, for the following reaction is 9.52×10^-2at 350 K.

CH₄(g) + CCl₄(g) = 2 CH₂Cl₂(g)

Calculate the equilibrium concentrations of reactants and product when 0.300 moles of CH₄and 0.300 moles of CCl₄are introduced into a 1.00 L vessel at 350 K.

2. 2HI(g) =H₂(g) + I₂(g)

If 1.87 moles of HI, 0.335 moles of H₂, and 0.211 moles of I₂ are at equilibrium in a 15.6 L container at 748 K, the value of the equilibrium constant, K_p, is ?

3. The equilibrium constant, K_p, for the following reaction is 2.01 at 500 K:

PCl₃(g) + Cl₂(g) =PCl₅(g)

Calculate the equilibrium partial pressures of all species when PCl₃ and Cl₂, each at an intitial partial pressure of 0.829 atm, are introduced into an evacuated vessel at 500 K.

4. The equilibrium constant, K_p, for the following reaction is 1.80×10^-2 at 698 K:

2HI(g) = H₂(g) + I₂(g)

Calculate the equilibrium partial pressures of all species when HI(g) is introduced into an evacuated flask at a pressure of 1.29 atm at 698 K.

Step 3 Develop a report comparing and contrasting the two companies’ Sustainability Report with regard to business ethics, social responsibility, and environmental sustainability. In your opinion, does Coca-Cola receive a grade of A on their business ethics, social responsibility, and sustainability efforts? Grade each company on the three dimensions, and give each an overall grade. Justify your grades.

1. What are executive orders and upon what powers are they based? Why are some executive orders controversial?

7.28 LAB: Artwork label (classes/constructors). Written in C++

Given main(), complete the Artist class (in files Artist.h and Artist.cpp) with constructors to initialize an artist's information, get member functions, and a PrintInfo() member function. The default constructor should initialize the artist's name to "None" and the years of birth and death to 0. PrintInfo() should display Artist Name, born XXXX if the year of death is -1 or Artist Name (XXXX-YYYY) otherwise.

Complete the Artwork class (in files Artwork.h and Artwork.cpp) with constructors to initialize an artwork's information, get member functions, and a PrintInfo() member function. The constructor should by default initialize the title to "None", the year created to 0. Declare a private field of type Artist in the Artwork class.

Ex. If the input is:

Pablo Picasso
1881
1973
Three Musicians
1921

the output is:

Artist: Pablo Picasso (1881-1973)
Title: Three Musicians, 1921

If the input is:

Brice Marden
1938
-1
Distant Muses
2000

the output is:

Artist: Brice Marden, born 1938
Title: Distant Muses, 2000

write an essay of (250 to 300 words) on "obesity"

When a bond sells at a premium, is the periodic interest expense less than, equal to, or greater than the periodic interest payment? Why? Be specific. State any accounting principles that must be invoked, and how that (those) principle(s) apply. What is the role of the premium account in your answer? Fully explain why as we practiced in class. Be concise, yet thorough in your explanation.